Horticultural and greenhouse operations are facing increasing challenges in dealing with sanitation issues related to water treatment. Over the course of growing a crop, pathogenic microorganisms accumulate and algae flourish on moist surfaces posing a constant threat to plants and produce. The main challenges lie the areas of irrigation water, elimination of biofilm and algae control. Existing biocidal products, while effective in killing algae, are not effective in removing biofilm from the water lines. The ultimate solution would be to employ a biocide that is capable to control algae on greenhouse surfaces and strip the biofilm in irrigation lines. Chlorine dioxide has demonstrated to possess both properties.

Controlled Environment Horticulture is a vast topic, and has been utilised in varying forms for centuries. Excavations of the city of Pompeii showed remains of early greenhouses dating back to AD79; and the modern greenhouses are thought to originate in the thirteenth century in Italy. Most people recognise the use of greenhouses for growing flowers and vegetables, whether in their own garden, at garden centres or on a commercial basis. Indeed most people will be conversant with irrigation systems that are used to supply water to such greenhouses and the use of heaters to control the temperature and thereby extend the growing season. However, modern systems have been developed for Controlled Environment Horticulture that are designed to further optimise the growing conditions; with sophisticated computer controlled sensors, combined with advanced software models, that can control not only the temperature, light level and water, but also the level of nutrients, humidity, pH and CO2

`A technique of growing plants in nutrient solution”. Hydroponics literally means water-working or water-activation. It is a cultivation technique for growing plants in highly oxygenated, nutrient enriched water, rather than soil. The nutrient solution and its management are the cornerstone for a successful hydroponics system. The function of a hydroponics nutrient solution is to supply the plant roots with water, oxygen and essential mineral elements in soluble form. In soil, biological decomposition breaks down organic matter into basic nutrients that plants feed on. Water dissolves these nutrients which allows uptake by the roots. For a plant to receive a well balanced diet, everything in the soil must be in perfect balance.

Introduction: Controlled Environment Horticulture is a vast topic, and has been utilised in varying forms for centuries. Excavations of the city of Pompeii showed remains of early greenhouses dating back to AD79; and the modern greenhouses are thought to originate in the thirteenth century in Italy. Most people recognise the use of greenhouses for growing flowers and vegetables, whether in their own garden, at garden centres or on a commercial basis. Indeed most people will be conversant with irrigation systems that are used to supply water to such greenhouses and the use of heaters to control the temperature and thereby extend the growing season.

Why managing company information is important
Managing your horticultural company demands insight into various processes. For the cultivation of your crop, you collect information about the greenhouse climate and water and energy use. In addition, you als to deal with data about labor productivity, costs, inventory and planning – among other things. Good control of production and quality, along with the management of costs and yields are essential for your company profit. This means that all the information from the various sources must be structured, stored and displayed in an orderly manner. Only then is targeted information analysis possible in order to arrive at an assessment and improvement.

Why efficient irrigation is important.
Water and fertilizers are essential to the growth of your crop. However, these resources are becoming increasingly scarce worldwide. Modern horticulture has various possibilities for saving water and fertilizers. For example, recirculation of drain water reduces consumption by at least 30%. Exact alignment of the plant’s needs and the irrigation also provides an important contribution to savings. An associated advantage is that an optimal irrigation strategy will increase your crop performance and your profit.
Water solutions for your horticultural company
With sustainable automation solutions from Hoogendoorn, you can regulate the irrigation in your greenhouse and in your open field in a targeted manner. The innovative iSii process computer precisely coordinates the dosage of various water sources such as rainwater, well water and drain water with the demands of the crop. Wherever possible, iSii also regulates the complete recirculation and disinfection of drain water. The advanced software anticipates changing conditions pro-actively. For example, the frequency and duration of irrigation sessions are adjusted prior to times of more or less sunshine. Based on the measured water intake of the plants and the water content of the soil or substrate, the irrigation can be tailored even more precisely to the growth process

Water usage in agriculture and horticulture industry is mainly done through irrigation process. With global agricultural production increase and consequently increase of water demand there has been more and more need to look for water recycling options in order to decrease the water consumption at source. Lenntech provides sustainable complete solutions for water treatment in agriculture and horticulture industry considering a wide range of technologies and strategies.

Why regulating your energy consumption is important
A growth climate with the proper ratio of light, warmth and CO2 dosage ensures high production and quality. The most important sustainable source of growing light and warmth for your crop process, the sun, is not always sufficiently available. That’s why supplemental energy must be used. However, fossil energy sources, such as natural gas and petroleum are becoming ever scarcer and more expensive and they burden the environment. Efficient management of energy processes and CO2 dosage, therefore, are necessary for sustainable production and for your company profit.

Why regulation of your greenhouse climate is important.
As a horticultural entrepreneur, you understand better than anyone that the greenhouse climate has an immense influence on the condition of your crops. Air temperature, humidity, CO2 content and the proper balance of growing lights are essential conditions for a healthy and vigorous crop. By regulating your greenhouse climate in a proper manner, you reduce the chance of disease and plagues and you ensure the quality of your production. Moreover, you save precious energy.

Sloped Green Roofs Utilize GEOWEB 3D Confinement Technology. Presto has partnered with the leader in the vegetated roof industry American Hydrotech, Inc. for all vegetated roof projects in the United States. They provide a complete solution for all roof types — utilizing the Presto GEOWEB 3D Confinement technology for their product known as GardNet in their Garden Roof Assembly for sloped roof applications.

Sample Preparation:Typically, it is not a requirement to filter a hydroponics sample.

Calibration:Before use the multiple ion probe must be conditioned in Aptisens multiple ion conditioning solution. Ensure the correct calibration solutions for a three-point calibration are set up on the Mobile meter or MeterLink. Follow the instructions for calibration and proceed to take a sample reading when the calibration data is ‘very good’ or ‘good’ for all ions.

Sample Reading:Place the probe in the aqueous extract and ‘Take a Sample’ reading. The concentrations for each ion will be displayed in ppm or mmol / L.

Probe Care:After taking your reading be sure to remove the sensors from the solution as quickly as possible, rinse with deionised water and replace the cap of the probe.

We have optimized six and four ion probes for horticultural applications. For growers, these products offer a “lab-in-hand” solution — a quick and affordable way to maintain the proper nutrient balance required for better yield, improved flavor and color, greater disease resistance and longer shelf life.
Controlling the concentration of nutrients in liquids is a vital step in the fertigation process. Today, nutrient levels are tested daily, most commonly by measuring pH and EC, and dispatching samples to offsite labs for analysis. This traditional testing protocol is time-consuming and costly, and delays access to information on potential yield-threatening nutrient levels.

Sample Preparation:This preparation can be applied to any plant tissue. Take a sample of lettuce and remove any soil but do not wash the plant tissue as doing so may reduce the number of ions in sample. Weigh this sample and record (say 100 g). Macerate the plant tissue in a blender and add a known amount of hot deionised water to the sample to extract the nutrients. For example, dilute the sample two-fold (200 mL), three-fold (300 mL) or five-fold (500 mL). Ensure all the plant tissue is covered with water and leave to sit for approximately 30 min with some stirring. The sample then needs to be filtered.

Set up a funnel with folded filter paper in a conical flask or any vessel that can hold a funnel. Pour the plant tissue and water into the funnel and allow the mixture to filter. Collect the filtrate.

Calibration:Before use the multiple ion probe must be conditioned in Aptisens multiple ion conditioning solution. Ensure the correct calibration solutions for a three-point calibration are set up on the Mobile meter or MeterLink. Follow the instructions for calibration and proceed to take a sample reading when the calibration data is ‘very good’ or ‘good’ for all ions.

Sample Reading:Place the probe in the plant tissue filtrate and ‘Take a Sample’ reading. The concentrations for each ion will be displayed in ppm or mmol / L.

Remember to multiply these concentrations by the dilution factor.

Probe Care:After taking your reading be sure to remove the sensors from the solution as quickly as possible, rinse with deionised water and replace the cap of the probe

Delta Hydronics Inc. is recognized as the leader in the Hydroponics Industry by designing, engineering and installing water heating and cooling systems for the hydroponic growing, harvesting and produce processing industries.

Argus is an automated control systems pioneer with over thirty years of leadership and innovation in control technology. We were among the first to use computers for integrating the control of greenhouse environments and irrigation systems. Today our systems are used in horticulture and biotechnology research facilities, universities, aquaculture and aquaponics, and many other custom control applications at sites throughout the world.

AgroMatt has been developed for used for landscaping and horticultural applications. This environmentally friendly product prevents the use of pesticides and avoids labor intensive weeding between pots and plants. Available in UV stable black, green and brown fabrics can this perfectly be incorporated in the environment. Lines and squares are being woven into the fabric for the comfort of its users.

The agriculture industry is a water intensive industry that needs a constant contaminant free water supply to ensure high harvest yields and healthy farm livestock. This requires agriculture water treatment solutions and specific soil additives that are sustainable and environmentally friendly. Agriculture water treatment and waste water treatment is essential to prevent bacteria, fungus, while reducing pesticide and nutrient pollution degradation of farmland used in commercial agriculture and horticulture operations. Genesis Water Technologies can engineer, build and provide sustainable agriculture water treatment and wastewater reuse systems as well as specific soil mediums for both greenhouse nurseries and commercial farming operations.

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